They are Disney so the price is what it is. But I believe this is the first time the digital has ever gone on sale.
iTunes
POTC: The Curse of the Black Pearl
POTC: Dead Man’s Chest
POTC: At World’s End
POTC: On Stranger Tides
Google Play
POTC: The Curse of the Black Pearl
POTC: Dead Man’s Chest
POTC: At World’s End
POTC: On Stranger Tides
Vudu
POTC: The Curse of the Black Pearl
POTC: Dead Man’s Chest
POTC: At World’s End
POTC: On Stranger Tides
Amazon
POTC: The Curse of the Black Pearl
POTC: Dead Man’s Chest
POTC: At World’s End
POTC: On Stranger Tides
Microsoft
POTC: The Curse of the Black Pearl
POTC: Dead Man’s Chest
POTC: At World’s End
POTC: On Stranger Tides